package collection;

import javax.jws.soap.SOAPBinding;
import java.util.ArrayList;
import java.util.Collection;

//集合间的操作
public class CollectionOperDemo {
    public static void main(String[] args) {
        Collection c1 = new ArrayList();
        c1.add("java");
        c1.add("c++");
        c1.add(".net");
        System.out.println("c1:"+c1);

        Collection c2 = new ArrayList();
        c2.add("android");
        c2.add("ios");
        c2.add("java");
        System.out.println("c2:"+c2);

        c1.addAll(c2);//将c2添加到c1中;
        System.out.println("c1:"+c1);
        System.out.println("c2:"+c2);

        Collection c3 = new ArrayList();
        c3.add("c++");
        c3.add("android");
        c3.add("php");
        System.out.println("c3:"+c3);

        boolean contains = c1.containsAll(c3);//判断c1中是否包含c3中的所有元素
        System.out.println("是否包含:"+contains);

/*      取交集:c1中仅保留与c3所共有的元素，而c3不变
        c1.retainAll(c3);
        System.out.println("c1:"+c1);
        System.out.println("c3:"+c3);*/

        //删交集:将c1中与c3共有的元素删除，c3不变
        c1.removeAll(c3);
        System.out.println(c1);
        System.out.println(c3);

    }
}
